This circuit with two HT2030s powers 6 LEDs in a decorative flashing system. The circuit is from Electronics Now magazine, December 1997. The LEDs are fed in sequence.
The uPC2002 circuit is equivalent to the TDA2002 in this 1986 circuit. This integrated circuit must...
Small time intervals up o some minutes can be achieved with this circuit. Only incandescent lamps...
This circuit with a voltage comparator is delayed by the capacitor. The circuit drives a power...